I played with FizzBuzz when this was mentioned here a month ago, focusing on the algorithm not optimizations. I stopped once I could do it in simple code with

I played with FizzBuzz when this was mentioned here a month ago, focusing on the algorithm not optimizations. I stopped once I could do it in simple code with no math except addition, 15 numbers at a time. for (int x = 0 ; x < 1000000 ; x+= 15) { printf("%d\n%d\nfizz\n%d\nbuzz\nfizz\n%d\n%d\nfizz\nbuzz\n%d\nfizz\n%d\n%d\nfizzbuzz\n", 1 + x, 2 + x, 4 + x, 7 + x, 8 + x, 11 + x, 13 + x, 14 + x); } That is simple enough and fast enough for me.